4 is to ensure some gestures don't produce clicks (especially three finger clicks and four finger tap sequences). This shouldn't cause your issues however.
It could also be logged if some external hardware constantly triggers USB connect & disconnect notifications. Are you always seeing a "STDEV" log before the c00s? (Left click of MacBook trackpad not registering with external 4K monitor connected could be related)
Possibly check the macOS console.app for any constantly appearing USB related error logs